Anchoring assembly for anchoring a liner of a cured lining material, a ferrule suitable for use with the anchoring assembly, an anchoring mounting assembly further comprising a ferrule holder and the use of the anchoring assembly

ABSTRACT

An anchoring assembly for anchoring a liner of a cured lining material arranged to be applied in liquid form to a metal object provided with the anchoring assembly, the anchoring assembly including an elongated mounting pin and a ferrule provided at a first end thereof, wherein the pin is arranged to be mounted at the first end to the metal object, the anchoring assembly further including a plurality of spaced anchor fins connected to the pin at a second end and extending radially outward relative to the pin, wherein the ferrule includes a radially outwardly extending place holder part arranged to be held by a ferrule holder during mounting of the pin at the first end to the metal object.

CROSS-REFERENCE TO RELATED APPLICATION

This application claims priority from Dutch patent application no.2013327 filed Aug. 13, 2014 and Dutch patent application no. 2014812filed May 18, 2015, the contents of which are incorporated by referenceherein.

TECHNICAL FIELD AND BACKGROUND

The present invention generally relates to an anchoring assembly foranchoring a liner of a cured lining material applied in liquid form to ametal object provided with the anchoring assembly, and more specificallyrelates to an anchoring assembly for anchoring concrete linings.

Two categories of anchoring assemblies can be distinguished, those thatare mounted on a metal object before lining material in liquid form isapplied, and those that are pre-installed in cured lining material. Bothcategories comprise a variety of different types of anchor assemblies,all of which transfer loads from the anchor assembly to the cured liningmaterial in a variety of ways, which at least depends on the actualdesign of the anchor assemblies.

The above-mentioned loads are considered to be either static or dynamic.Static loads comprise, for example, tension, shear, or a combination ofboth. Dynamic loads on the other hand comprise, for example, seismic,fatigue, wind and/or shock. The design of an anchor assembly determineswhether it is suitable or unsuitable for the above mentioned load types.

Several techniques are known in the art to transfer the load, such askeying, friction and bonding techniques. Keying, for example, isconsidered to be the direct transfer of a load from the anchor assemblyinto the cured lining material by bearing forces in a same direction ofloading the anchor assembly.

Friction is based on transferring a load through friction betweenexpansion sleeves of the anchor assembly and the wall of the drilledhole in the concrete. The effect is similar as is reached by a standardplug in a wall. Finally, bonding takes place when resins or grouts areused around the anchor, which is usually the case with post-installedanchor assemblies.

The present invention is related to an anchoring assembly which is or isto be provided on a metal object before the lining material in liquidform is applied.

A known anchoring assembly comprises hex metal, which is to be handwelded to the metal object before the lining material in liquid form isapplied to the metal object.

Another known anchoring assembly for anchoring a liner of a cured liningmaterial applied in liquid form to a metal object provided with theanchoring assembly comprises an elongated mounting pin, which elongatedmounting pin is arranged to be mounted, at a first end, to the metalobject, and a nut having a plurality of spaced anchor fins welded orsoldered to the nut, wherein the nut is connected to the elongatedmounting pin at a second end and extend radially outwardly with respectto the elongated mounting pin.

In another example, the nut having the plurality of spaced anchor finsis casted using a mold or die or the like.

First, the elongated mounting pin is welded to the metal object. Theelongated mounting pin comprises a ferrule, at the first end, forholding any welding residual at his place during the welding process.Once the elongated mounting pin is securely mounted to the metal object,the nut may be screwed at the second end of the elongated mounting pin.In order to provide for a more permanent connection between the nut andthe mounting pin, the nut may further, once it is screwed on themounting pin, be spot welded, hand welded, notched into place, glued orany other similar fashion, to the mounting pin.

A drawback of the known anchoring assemblies is that it is timeconsuming to mount an anchoring assembly on the metal object. In orderto mount an anchoring assembly on the metal object, different timeconsuming steps need to be performed to make sure that the mounting issuccessful. These steps are directed to the welding of the elongatedmounting pin to the metal object, and, subsequently, screwing the nuthaving the spaced anchor fins, on top of the elongated mounting pin, atits second end. Another time consuming method is to hand weld hex metalto the metal object before the lining material is applied.

BRIEF SUMMARY OF THE INVENTION

Accordingly it is an object of the present invention to provide for amethod of mounting anchoring assemblies to a metal object for anchoringa liner of a cured lining material arranged to be applied in liquid formto the metal object in a faster, less time consuming manner compared toknown methods.

Accordingly, it is a further object of the present invention to providefor an anchoring assembly which is arranged to be mounted to the metalobject in a faster, less time consuming manner compared to knownanchoring assemblies.

In order to accomplish that object, the invention, according to a firstaspect thereof, provides for a method of mounting anchoring assembliesto a metal object for anchoring a liner of a cured lining materialarranged to be applied in liquid form to the metal object, the methodincluding the steps of: placing an anchoring assembly template, forexample a stencil, at the metal object, the template comprising aplurality of anchoring assembly cut outs indicating positions of theanchoring assemblies relatively to each other; applying a marking agentto the anchoring assembly template marking the metal object by markedpositions corresponding to the plurality of anchoring assembly cut outs;and mounting the anchoring assemblies to the metal object correspondingto the marked locations at the metal object.

The invention is based on the perception that the time required for themounting process of the anchoring assembly may be reduced in case theplurality of spaced anchor fins are pre-connected to the elongatedmounting pin at a second end, before the mounting process takes place.As such, the elongated mounting pin having the plurality of spacedanchor fins are mounted as a whole to the metal object.

The inventors noted that in order to decrease the time needed formounting the anchor assemblies to the metal object, the metal object maybe provided with markings for indicating the positions of each of theanchor assemblies to be mounted on the metal object. By using ananchoring assembly template having cut outs corresponding to theplurality of anchoring assemblies to be mounted, a person is able tomark the metal object for that plurality of anchoring assemblies atonce. A person is able to, for example, mark 50, 100 or 150 positions ofanchoring assemblies at the metal object at one time. This saves time asin prior situations, each anchoring assembly was marked one at a time.

In an example of the invention, the anchoring assembly templatecomprises evenly distributed anchoring assembly cut outs such that theanchoring assemblies are mounted at the metal object evenly distributed.

The advantage of this example is that the load the anchoring assembliesare able to transfer to the cured lining material is evenly distributed.In other words, the bonding of the anchor fins of the anchoringassemblies with the cured lining material is evenly distributed.

In another example, the anchoring assembly cut, outs correspond to acircumferential edge of the anchoring assemblies, respectively.

This example is advantageous as a person responsible for mounting theanchoring assemblies to the metal object is able to clearly see wherethe anchoring assemblies should be mounted. The person will try to fiteach anchoring assembly within the circumferential edge of the markingapplied to the metal object.

In a further example, the anchoring assembly cut outs indicate positionsand orientations of anchoring fins of the anchoring assembliesrelatively to each other.

The inventors noted that during cleaning of the surface, i.e. preparingthe metal object for welding, the markings already applied to the metalobject may be lost. As such, it is most likely that the markingscorresponding to the spaced anchor fins of the anchoring assemblies arenot, or hardly, affected by the cleaning process, such that thesemarkings are, most likely, still visible for the person responsible formounting the anchoring assemblies.

In another embodiment, applying the marking agent comprises any ofspraying a marking spay and applying a marking paint to the anchoringassembly template marking the metal object by the marked positions.

In a further embodiment, the method further includes the step ofpreparing at least the marked locations at the metal object for mountingthe anchoring assemblies thereto.

The above mentioned step may be performed any time during the mountingprocess, for example after or before the marking agent is applied to themetal object.

Preparing the at least marked locations at the metal object for mountingthe anchoring assemblies means, for example, that the metal object isground, sand blasted or the like, such that the metal object is fit forwelding the elongated mounting pin thereto.

In a second aspect of the invention, there is provided an anchoringassembly template for use in mounting anchoring assemblies to a metalobject for anchoring a liner of a cured lining material arranged to beapplied in liquid form to the metal object, the anchoring assemblytemplate including a plurality of anchoring assembly cut outs indicatingpositions and orientations of the anchoring assemblies relative to eachother.

Here, the anchoring assembly cut outs may be evenly distributed suchthat the anchoring assemblies are mounted at the metal object evenlydistributed.

The anchoring assembly cut outs may further correspond to acircumferential edge of the anchoring assemblies, respectively.

In an example, the anchoring assembly cut outs indicate positions andorientations of anchoring fins of the anchoring assemblies relatively toeach other.

In an example, the present application provides for an anchoringassembly for anchoring a liner of a cured lining material arranged to beapplied in liquid form to a metal object provided with the anchoringassembly, the anchoring assembly comprising an elongated mounting pinand a ferrule provided at a first end of the elongated mounting pin,wherein the elongated mounting pin is arranged to be mounted, at thefirst end, to the metal object using the ferrule, the anchoring assemblyfurther comprises a plurality of spaced anchor fins, wherein theplurality of spaced anchors fins are connected to the elongated mountingpin at a second end and extend radially outwardly with respect to theelongated mounting pin,

The ferrule includes a radially outwardly extending place holder partarranged to be held by a ferrule holder during mounting of the elongatedmounting pin, at the first end, to the metal object.

A ferrule is used to hold the mounting residue, i.e. welding residue, athis place during the mounting process, i.e. stud welding process. Theinventors noted that a ferrule comprising a radially outwardly extendingplace holder part is beneficial as this provides the possibility forholding the ferrule at his place during the mounting process and forremoving the ferrule holder after the mounting process. Further, itprovides for space at the other side of the anchoring assembly such thatit is possible to mount anchoring assemblies in smaller spaces at themetal object.

The invention is based on the perception that the time required for themounting process of the anchoring assembly may be reduced in case theplurality of spaced anchors fins are connected to the elongated mountingpin at a second end and extend radially outwardly with respect to theelongated mounting pin, before the mounting process takes place. Assuch, only the elongated mounting pin needs to be mounted to the metalobject in situ, i.e. at the building or construction site.

The inventors noted that in such a case, the ferrule should comprise aradially outwardly extending place holder part arranged to be held by aferrule holder during mounting of the elongated mounting pin, at thefirst end, to the metal object. Such a radially outwardly extendingplace holder has the beneficial effect that the ferrule holder is ableto hold the ferrule, and align it with the rest of the anchoringassembly, during the mounting process. The rest of the anchoringassembly, for example the spaced anchor fins, may be held by a chucksuch that the complete anchoring assembly is kept in its place duringthe mounting process.

A further advantage is that, due to the radially outwardly extendingplace holder part, the anchoring assembly required less space around itduring the welding process, and it can therefore be welded in muchtighter spaces.

In accordance with the present invention, extending radially outwardlywith respect to the elongated mounting pin means, in an example, thatthe spaced anchor fins are oriented substantially parallel to the metalobject when the anchoring assembly is mounted on the metal object. Assuch, the spaced anchor fins are oriented transversely compared to theelongated direction of the mounting pin.

The anchor fins may be spaced relative to each other which means thatthe individual anchor fins are not directly interconnected. In anexample of the invention, the anchor fins are indirectly connected toeach other via a nut which is connectable to the elongated mounting pin.

In a practical example of the present invention, applying liningmaterial in liquid form to a metal object comprises pouring and/orramming concrete onto the metal object having mounted thereto ananchoring assembly.

In an embodiment of the present invention, the place holder part extendsradially outwardly between two of the plurality of radially outwardlyextending spaced anchor fins.

The above provides additional room or space for the ferrule holder tohold the radially outwardly extending place holder part. As such, theradially outwardly extending spaced anchor fins do not form an obstaclefor the ferrule holder to engage on the radially outwardly extendingplace holder part.

In another embodiment, the two radially outwardly extending spacedanchor fins define a central angle, and wherein a centre axis of theradially outwardly extending place holder part substantially coincideswith a mirror axis of the central angle.

The inventors noted that the most room or space is available in case theradially outwardly extending place holder part is oriented substantiallyin the middle of two subsequent anchor fins.

In the context of the present invention, a central angle is an anglewhose apex is the centre of a circle, i.e. the centre is conceptuallyequal to the elongated mounting pin and the circle is spanned by theends of the spaced anchor fins, and whose legs, i.e. the spaced anchorfins, are radii intersecting the circle in two distinct points therebysubtending an arc between those two points whose angle is equal to thatof the central angle itself. It is also known as the arc segment'sangular distance.

The centre axis of the radially outwardly extending place holder partshould then substantially be in line with the mirror axis of the abovedefined central angle. The mirror axis is defined as the axis of themiddle of the central angle, originating from the elongated mountingpin.

In an embodiment of the invention, the ferrule is made of a materialcomprising any of ceramic, metal, plastic.

In a further embodiment, the ferrule comprises a plurality of recessesat a side which is to be mounted to the metal object such that aplurality of spaces are provided for venting air pushed out during themounting process of stud welding the elongated mounting pin to the metalobject.

In another embodiment the ferrule does not comprise one or more recessesat the side of the ferrule having the radially outwardly extending placeholder part. The advantage hereof is that the anchoring assembly may bemounted to a metal object which is vertically oriented. Due to gravity,mounting residual, for example welding residual, may drip and fall down.In case no recesses are available at the side of the ferrule having theradially outwardly extending place holder part, no mounting residual,i.e. welding residual, is able to drip downwards.

As such, these so called bottom recesses are omitted to avoid any moltenmaterial during the welding process to drip down out of the ferrule dueto gravity.

In an embodiment of the present invention, the anchoring assemblycomprises three spaced anchor fins.

The inventors noted that in case the anchoring assembly comprises threespaced anchor fins, there is sufficient space between two of thesespaced anchor fins for the radially outwardly extending place holderpart to be held by a ferrule holder.

In another example, the radially outwardly extending place holder partcomprises a raised rim to which the ferrule holder can engage forholding the place holder.

The shape of the raised rim may be any of rectangular, square,triangular, pentagonal, hexagonal, circular or the like.

The advantage of a ferrule having a rim is that the ferrule holder maybe adapted with, for example, a notch or recess or the like whichmatches with the rim, such that the ferrule holder is able to securelyhold the ferrule, and thus also the elongated mounting pin having thespaced anchor fins, in place.

As such, the radially outwardly extending place holder part may form amating connector for a ferrule holder part of the ferrule holder.

In a further embodiment of the present invention, the anchoring assemblyfurther comprises a nut, wherein the plurality of spaced anchor fins arewelded or soldered to the nut, and wherein the nut is mounted on theelongated mounting pin at the second end.

The nut having the plurality of spaced anchor fins may also be acomprised by a single component by e.g. casted using a mold or die.

The nut may further be fixed to the elongated mounting pin at the secondend, i.e. using a press force, or soldered, welded, or the like.

One of the advantages of the present invention is that the nut may besecurely fastened to the mounting pin before the mounting pin is mountedonto the metal object. The nut may, for example, be screwed on top ofthe mounting pin, and may further be fixated to the elongated mountingpin such that the nut is permanently fastened to the elongated mountingpin. The above does not need to take place in situ, i.e. on the buildingsite. Elongated mounting pins having the nut securely fastened theretomay be manufactured beforehand, such that the mounting process ofmounting the anchoring assemblies onto the metal object is made lesstime consuming.

In a further embodiment of the present invention, the spaced anchor finsare tangentially evenly distributed around the elongated mounting pin.

In an even further embodiment of the present invention, the place holderis having a width perpendicular to the radially outwardly extendingdirection, wherein the width is substantially smaller than a diameter ofthe elongated mounting pin.

The advantage of the above provided embodiment is that a large part ofthe circumferential edge is not occupied by the radially outwardlyextending place holder part, providing room or space along that largepart of the circumferential edge such that along that part the elongatedmounting pin may be mounted to the metal object, for example by awelding process.

In another embodiment, the place holder is having a length in line withthe radially outwardly extending direction, wherein the length issubstantially equal to a length of the radially outwardly extendingspaced anchor fins.

In accordance with the present invention, another type of anchoringassembly may also be used in conjunction with a ferrule. This type, ofanchoring assembly is especially useful for anchoring a liner havingthickness of about 30 mm 80 mm, preferably around 50 mm.

As such, it is an anchoring assembly for anchoring a liner of a curedlining material applied in liquid form to a metal object provided withsaid anchoring assembly, said anchoring assembly including an elongatedmounting pin, which elongated mounting pin is arranged to be mounted, ata first end, to said metal object, and a plurality of spaced anchorfins, wherein said plurality of spaced anchors fins are connected tosaid elongated mounting pin at a second end and extend radiallyoutwardly with respect to said elongated mounting pin, and wherein saidspaced anchor fins are plate shaped having a first side and a secondside opposite to said first side, for example a top side and a bottomside, wherein each anchor fin comprises at least two recesses and atleast two protrusions, wherein a first of each of said at least twoprotrusions extends from a first side of a corresponding anchor fin andwherein a second of each of said at least two protrusions extends from asecond side of said corresponding anchor fin.

This type of anchoring assembly is based on the perception that thetotal load an individual anchoring assembly is able to transfer to thecured lining material is increased in case the anchoring assembly isprovided with a plurality of spaced anchor fins extending radiallyoutwardly with respect to the elongated mounting pin, and wherein thelength of the anchoring assembly is adjusted to the expected thicknessof the cured lining material.

By having a first of each of said at least two protrusions extends froma first side of a corresponding anchor fin and a second of each of saidat least two protrusions extends from a second side of saidcorresponding anchor fin, the total load the anchoring assembly is ableto transfer is increased.

In an example, each of said at least two protrusions are connected totheir corresponding anchor fin at one of said at least two recesses.

This means that close to, or at, each recess present in an anchor fin, aprotrusion is present.

Each anchor fin may include two protrusions, wherein these twoprotrusions are oriented, placed, adjacently to each other in elongateddirection. As such, when the anchoring assembly is placed on top of themetal object, the protrusions are oriented on top of each other, i.e.above each other. The same may be said for the recesses of each of theanchor fins.

The protrusions preferably extend tangentially with respect to themounting pin, i.e. in circumferential direction of the mounting pin.

For example, a length of said assembly is between 3 cm and 8 cm,preferably between 4.5 cm and 5.5 cm.

In an example, each of said plurality of spaced anchor fins extend toabove said mounting pin, in elongated direction. The anchor fins may beconnected to each other above said elongated mounting pin.

In an example there is provided a ferrule suitable for use with ananchoring assembly according to the present invention, wherein theferrule is arranged to be mounted at the first end of the elongatedmounting pin, wherein the ferrule comprises a radially outwardlyextending place holder arranged to be held by a ferrule holder duringMounting of the elongated mounting pin, at the first end, to the metalobject.

The expressions, i.e. the wording, of the different aspects comprised bythe anchoring assembly, the ferrule and the anchoring mounting assemblyaccording to the present invention should not be taken literally. Thewording of the aspects is merely chosen to accurately express therationale behind the actual function of the aspects.

In accordance with the present invention, different aspects applicableto the above mentioned examples of the anchoring assembly, including theadvantages thereof, correspond to the aspects which are application tothe ferrule as well as the anchoring mounting assembly according to thepresent invention.

In an embodiment thereof, the radially outwardly extending place holderpart comprises a raised rim to which the ferrule holder can engage forholding the place holder.

The shape of the raised rim may be any of rectangular, square,triangular, pentagonal, hexagonal and circular.

The advantage of the radially outwardly extending place holder parthaving a raised rim, is that a ferrule holder may be designed with aferrule holder part matching that raised rim, i.e. the ferrule holderpart may be considered as a mating connector for the radially outwardlyextending place holder part having the raised rim.

In another embodiment, the place holder is having a width perpendicularto the radially outwardly extending direction, wherein the width issubstantially smaller than a diameter of the elongated mounting pin.

In an example, there is provided an anchoring mounting assemblyincluding an anchoring assembly according to any of the embodiments ofthe above mentioned anchoring assembly, the anchoring mounting assemblyfurther including a ferrule holder arranged for holding the ferrule atthe radially outwardly extending place holder part during mounting ofthe elongated mounting pin, at the first end, to the metal object.

In an embodiment thereof, the ferrule holder comprises a ferrule holderpart arranged for mating with the radially outwardly extending placeholder part.

In an example, there is provided for a use of an anchoring assemblyaccording to any of its embodiments as explained above, for anchoring aliner of a cured lining material arranged to be applied in liquid formto a metal object provided with the anchoring assembly.

In an example, the invention provides for an anchoring assembly foranchoring a liner of a cured lining material arranged to be applied inliquid form to a metal object provided with the anchoring assembly, theanchoring assembly comprising an elongated mounting pin and a ferruleprovided at a first end of the elongated mounting pin, wherein theelongated mounting pin is arranged to be mounted, at the first end, tothe metal object, the anchoring assembly further comprises a pluralityof spaced anchor fins, wherein the plurality of spaced anchors fins areconnected to the elongated mounting pin at a second end and extendradially outwardly with respect to the elongated mounting pin, whereinat least one of the plurality of spaced anchor fins comprise a throughhole.

In an embodiment thereof, the through hole is being surrounded by acircumferential edge, from which edge a tab extends under an angle fromthe at least one spaced anchor fin.

In a further embodiment, the tab extends tangentially with respect tothe elongated mounting pin.

BRIEF DESCRIPTION OF THE DRAWINGS

The invention will now be explained in more detail with reference to theappended figures, which merely serve by way of illustration of theinvention and which must not be construed as being limitative thereto.

FIG. 1 shows, in a schematic form, an embodiment of an anchoring nutfixated to the mounting pin according to the present invention.

FIG. 2 shows, in a schematic form, a anchoring mounting assemblyaccording to an embodiment of the present invention.

FIG. 3 shows, in a schematic form, an example of a part of an anchoringmounting assembly according to an embodiment of the present invention.

FIG. 4 shows, in a schematic form, an example of a ferrule to be usedwith an anchoring assembly according to the present invention.

FIG. 5 shows, in a schematic form, an example of a flow chartillustrating a method according to the present invention.

FIG. 6 shows, in a schematic form, an example of an anchoring assemblytemplate according to the present invention.

DETAILED DESCRIPTION OF THE INVENTION

FIG. 1 shows, in a schematic form, a side view 1 of an embodiment of ananchoring nut fixated to a mounting pin according to the presentinvention.

The anchoring nut 3 comprises a plurality of spaced anchor fins 2extending radially outwardly from the anchoring nut 3. In the presentexample, the anchoring nut 3 is provided with a screw thread 4 forscrewing the nut 3 onto an elongated mounting pin 17 which mounting pin17 is to be attached to a metal object.

In the context of the present invention, the wording spaced means thatthe anchor fins 2 are each separately identifiable, i.e. each individualfin 2 is directly connected to either the elongated mounting pin or theanchoring nut 3.

As is clear from FIG. 1 of the anchoring nut 3, the spaced anchor fins 2are tangentially evenly distributed around the anchoring nut 3. Thismeans that the (tangential) distance between the separate anchor fins 2are substantially equal.

In the present example, the top side of the spaced anchor fins 2 arealigned, such that the cured lining material applied in liquid form to ametal object provided with an elongated mounting pin having theanchoring nut mounted thereon, is levelled with the cured liningmaterial. The inventors noted that in case the topside of the spacedanchor fins are not aligned, the cured lining material may chip andcause holes.

Further, the side 5 of the spaced anchor fins 2 at which the spacedanchor fins 2 are connected to the elongated mounting pin is tapered,such that the probability that the cured lining material present abovethe anchoring nut 3 and the spaced anchor fins 2 to spall and pop out isreduced.

The largest diameter of the anchoring nut 3, in the present example, is30 millimetre, providing easy transportation and installation of the nut3.

In order to increase the capability for withholding a larger load, a cutout part 6 of the spaced fins 2 is extended for providing additionalstrength to the anchoring assembly.

FIG. 2 shows, in a schematic form, a anchoring mounting assembly 11according to an embodiment of the present invention.

The anchoring mounting assembly 11 comprises an anchoring assembly,wherein the anchoring assembly comprises the nut 3, the elongatedmounting pin 17 and the ferrule 15. According to the present invention,an anchoring mounting assembly 11 thus comprises an anchoring assembly,the ferrule holder 12 and the chuck.

Here, the nut 3 having the spaced anchor fins 2 is screwed on top of theelongated mounting pin 17. Once the nut 3 is in place, it is furtherfixated, for example welded or pressurized, to the elongated mountingpin 17 to make sure that the connection is rigid, or permanent. Theabove mentioned process may be performed before the elongated mountingpin 17 with the nut 3 welded thereto is provided to the building site.This reduces any valuable time at the building site.

The assembly further comprises a ferrule 15, which is arranged to beheld by the ferrule holder. Once the anchoring mounting assembly is inplace, a person is able to weld the elongated mounting pin to the metalobject (not shown).

Mounting the elongated pin to the metal object is than performed by studwelding the elongated mounting pin. The ferrule is then arranged formaintaining or holding the spot welding residual, for example meltedmetal, at his place. The recesses 16 of the ferrule are arranged forventing air pushed out during the welding process.

The ferrule 15 comprises radially outwardly extending place holder 14arranged to be hold by a ferrule holder 12 during mounting of theelongated mounting pin 17, at the first end, to the metal object.

Here, the ferrule holder 12 comprises a ferrule holder part 13 arrangedfor mating with the radially outwardly extending place holder part 14.

The place holder part 14 extends radially outwardly between two of theplurality of radially outwardly extending spaced anchor fins 2, whereinthe two radially outwardly extending spaced anchor fins define a centralangle, and wherein a centre axis of the radially outwardly extendingplace holder part substantially coincides with a mirror axis of thecentral angle.

The anchoring mounting assembly 11 further comprises a chuck 18 forpositioning, and holding, the nut 3 having the spaced anchor fins 2during the welding process.

FIG. 3 shows, in a schematic form, an example of a part 31 of ananchoring mounting assembly according to an embodiment of the presentinvention. FIG. 3 shows the ferrule holder 12 having a ferrule holderpart 13 arranged for mating with the radially outwardly extending placeholder part 14.

As shown, the radially outwardly extending place holder part 14comprises a rim 32, in the particular example having a rectangularshape, which rim is suitable to fit into the opening 33 provided in theferrule holder part 13.

As mentioned before the shape of the rim 32, and thus also the shape ofthe opening 33, may be any of circular, rectangular, triangular,pentagonal, hexagonal.

FIG. 4 shows, in a schematic form, an example of a ferrule 14 to be usedwith an anchoring assembly according to the present invention.

The ferrule 14 is suitable for use with an anchoring assembly accordingto the present invention, wherein the ferrule is arranged to be mountedat the first end of the elongated mounting pin, wherein the ferrulecomprises a radially outwardly extending place holder 14 arranged to behold by a ferrule holder during mounting of the elongated mounting pin,at the first end, to the metal object.

As the before, two radially outwardly extending spaced anchor fins maydefine a central angle, and wherein a centre axis 33 of the radiallyoutwardly extending place holder part 14 substantially coincides with amirror axis of the central angle.

FIG. 5 shows, in a schematic form, an example of a flow chart 51illustrating a method according to the present invention.

FIG. 5 displays a method of mounting anchoring assemblies to a metalobject for anchoring a liner of a cured lining material arranged to beapplied in liquid form to the metal object, the method including thesteps of: placing 52 an anchoring assembly template at the metal object,the template comprising a plurality of anchoring assembly cut outsindicating positions of the anchoring assemblies relatively to eachother; applying 53 a marking agent to the anchoring assembly templatemarking the metal object by marked positions corresponding to theplurality of anchoring assembly cut outs; preparing 54 at least themarked locations at the metal object for mounting the anchoringassemblies thereto; and mounting 55 the anchoring assemblies to themetal object corresponding to the marked locations at the metal object.

FIG. 6 shows, in a schematic form, an example of an anchoring assemblytemplate according to the present invention.

FIG. 6 displays an anchoring assembly template 61 for use in mountinganchoring assemblies to a metal object for anchoring a liner of a curedlining material arranged to be applied in liquid form to the metalobject, the anchoring assembly template including a plurality ofanchoring assembly cut outs 63 (only 1 is shown) indicating positionsand orientations of the anchoring assemblies 61 relative to each other.

In an ideal situation, the ferrule should be fitted inside the circlemarked with reference numeral 62.

The present invention has been explained in the foregoing by means of anumber of examples. As those skilled in the art will appreciate, severalmodifications and additions can be realised without departing from thescope of the invention as defined in the appended claims.

What is claimed is:
 1. A method of mounting anchoring assemblies to ametal object for anchoring a liner of a cured lining material arrangedto be applied in liquid form to the metal object, the method comprisingthe steps of: positioning an anchoring assembly template relative to themetal object, the template comprising a plurality of anchoring assemblycut outs indicating positions of the anchoring assemblies relatively toeach other; applying a marking agent to the anchoring assembly templateto mark the metal object with marked positions corresponding to theplurality of anchoring assembly cut outs; and mounting the anchoringassemblies to the metal object corresponding to the marked positions onthe metal object.
 2. The method according to claim 1, wherein theanchoring assembly template comprises evenly distributed anchoringassembly cut outs such that the anchoring assemblies that are mounted tothe metal object are evenly distributed.
 3. The method according toclaim 1, wherein the anchoring assembly cut outs correspond to acircumferential edge of the anchoring assemblies.
 4. The methodaccording to claim 1, wherein the anchoring assembly cut outs indicatepositions of anchoring fins of the anchoring assemblies relatively toeach other.
 5. The method according to claim 1, wherein the step ofapplying the marking agent comprises at least one of spraying a markingspray and applying a marking paint to the anchoring assembly template tomark the metal object.
 6. The method according to claim 1, wherein themethod further comprises the step of preparing at least the markedlocations on the metal object for mounting the anchoring assembliesthereto.
 7. An anchoring assembly comprising an elongated mounting pinand a ferrule provided at a first end of the elongated mounting pin,wherein the elongated mounting pin is arranged to be mounted at thefirst end to a metal object, the anchoring assembly further comprising aplurality of spaced anchor fins connected to the elongated mounting pinat a second end and extending radially outwardly relative to theelongated mounting pin, wherein the ferrule comprises a radiallyoutwardly extending place holder part arranged to be held by a ferruleholder during mounting of the elongated mounting pin at the first end tothe metal object.
 8. The anchoring assembly according to claim 7,wherein the place holder part extends radially outwardly between two ofthe plurality of radially outwardly extending spaced anchor fins, andwherein the two radially outwardly extending spaced anchor fins define acentral angle, and wherein a center axis of the radially outwardlyextending place holder part substantially coincides with a mirror axisof the central angle.
 9. The anchoring assembly according to claim 7,wherein the ferrule comprises a plurality of recesses on a side thereofto be mounted to the metal object such that a plurality of spaces areprovided for venting air pushed out during mounting.
 10. The anchoringassembly according to claim 7, wherein the radially outwardly extendingplace holder part comprises a raised rim to which the ferrule holder canengage for holding the place holder, wherein a shape of the raised rimis one of rectangular, square, triangular, pentagonal, hexagonal andcircular.
 11. The anchoring assembly according to claim 7, wherein theplace holder has a width perpendicular to the radially outwardlyextending direction, wherein the width is substantially smaller than adiameter of the elongated mounting pin.
 12. The anchoring assemblyaccording to claim 7, wherein the place holder has a length aligned withthe radially outwardly extending direction, wherein the length issubstantially equal to a length of the radially outwardly extendingspaced anchor fins.
 13. The anchoring assembly according to claim 7,wherein the spaced anchor fins are plate shaped and have a first sideand a second side opposite the first side, wherein each anchor fincomprises at least two recesses and at least two protrusions, wherein afirst of each of the at least two protrusions extends from a first sideof a corresponding anchor fin and wherein a second of each of the atleast two protrusions extends from a second side of the correspondinganchor fin.
 14. The anchoring assembly according to claim 13, whereineach of the at least two protrusions are connected to theircorresponding anchor fin at one of the at least two recesses.
 15. Theanchoring assembly according to claim 14, wherein each of the at leasttwo protrusions are positioned adjacent to each other in an elongateddirection.